Biochemistry Experts

Barry Zirkin

Biochemistry and Molecular Biology
Johns Hopkins Bloomberg School of Public Health
United States of America


Dr. Barry Zirkin is currently affiliated to Johns Hopkins Bloomberg School of Public Health, United States of America, continuing research in the specialized scientific area of Bio-Chemistry and Molecular Biology. Education: PhD, University of Rochester, 1969 BA, State University of New York, Binghamton, 1963

Research Interest

Leydig cell aging spermatogenesis reproductive toxicology


  • Culty M, Thuillier R, Li W, Wang Y, Martinez-Arguelles DB, Gesteira Benjamin C, Triantafilou KM, Zirkin BR, Papadopoulos V. 2008. In utero exposure to di-(2-ethylhexyl) phthalate exerts both short-term and long-lasting suppressive effects on testosterone production in the rat. Biol Reprod. 78:1018-1028.

  • Chen H, Ge RS, Zirkin BR. 2009. Leydig cells: From stem cells to aging. Mol Cell Endocrinol. 306:9-16.

  • Midzak AS, Chen H, Papadopoulos V, Zirkin BR. 2009. Leydig cell aging and the mechanisms of reduced testosterone synthesis. Mol Cell Endocrinol. 299:23-31.

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